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Historical Hydrometric Data Map Search

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The map search is not optimized for extra small screen. As an alternative, the Station Search is available.

Map Legend

light orange marker in the shape of a balloon - check mark Active Station
light grey marker in the shape of a balloon - X Discontinued Station
dark orange marker in the shape of a tree - check mark Active Station (Seasonal)
dark grey marker in the shape of a tree - X Discontinued Station (Seasonal)

Help

More Info on Station Marker Locations

Clicking the station marker will open an info window for the selected station.

Please note that more data may be available on one of our partner websites.

Note that the full map cannot be printed using the browser's print function. Please use screen capture to print the map.

Map Controls
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Notice

Note that the drainage basin polygons are a prerelease dataset that will continue to be updated as new polygons are added.

Users should be aware that drainage areas derived from these polygons may differ from the official hydrometric station drainage areas published by WSC. The official hydrometric station drainage areas will be updated after the polygons have undergone a final review.

For more information, please see the documentation.

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